PACYC PCR not working after several attempts. Would anyone have any suggestions?

So, I have been trying to run a pACYC PCR which will be used later on for a Gibson Assembly. However the PCR is not working. I have already tried gradient PCR and changing extension time; however...

02 March 2021 1,146 2 View

Thin cut brain tissue flaking off of slides?

Hello! I have just encountered a new issue with some tissue flaking off of my slides and wondered if anyone else has experienced this or has any suggestions? The sections were cut at 18 microns...

09 December 2020 4,954 2 View

Sample size in G mellonella studies?

Hi everybody, I am working with G mellonella, and I know that one of the advantages of it is the lack of ethics commit and the 3R principles. However, I am very insecure about the sample size I...

29 October 2020 2,079 1 View

There are any component of gram + bacteria cell wall that can be used as a positive control?

Hello, I am going to evaluate the immunomodulatory effect of a gram positive probiotic bacteria in vitro and I need to use a positive control. I was thinking about LPS, but it's a component of...

11 March 2020 7,369 3 View

Any software for decomposing unitary matrices into quantum circuits?

I have a 32 by 32 unitary matrix representing a doubly controlled quantum operation and need to translate it into a quantum circuit. Are there any applications, preferably free, that can decompose...

05 January 2020 434 3 View

Where can I find a validated questionnaire that evaluates the professional profile and trajectory of graduates of a residency /specialization program?

I am looking for a validated instrument that allows me to collect information about the exit profile of a residency program and his professional trajectory after the program.

04 June 2019 7,709 3 View

Are the results in the PhET Stern-Gerlach simulator correct?

In a course on quantum mechanics I took we were told that for the setting in which the gun shoots a particle with spin orientation +z and the analyzer is perpendicular to this orientation, 50% of...

10 February 2019 416 6 View

Protocol: Conventional PCR HPRT gene?

Hi! I would like to know if anyone has the protocol for HPRT (housekeeping gene) conventional PCR (cyles, temperature...)? I've been searching on internet but I just found for real-time PCR. Can...

22 October 2018 7,984 2 View

Rusle LS parameter formula in ArcGis - Which is the theorical formula behind it?

02 September 2018 3,565 12 View

Are Anfinsen and Levinthal still considered valid in protein folding?

What are the recent developments regarding Anfinsen's idea that the way proteins fold depends on the sequence of amino acids alone? Are there any new insights on Levinthal's treating the native...

19 August 2018 9,320 16 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

SDS page software for analysis?

I did sds page to determine the difference in protein expression between 3 types of vaccine , but i don't have scanner or densitometer available. . so i wonder if there is a software to analyze...

02 March 2021 6,270 3 View

Which of the Covid-19 Vaccines would elicit the best immunoprotection and why?

I want to know which of the available Covid-19 Vaccines would elicit the best immunological response and why

02 March 2021 1,388 3 View

Is the sinovac vaccine safe and effective for people over the age of 60 ?

Dear respective researchers, I was asked by my institution to be vaccinated this week using the sinovac vaccine. However, from some of the information I got, this vaccine is not recommended for...

01 March 2021 7,781 6 View

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01 March 2021 3,905 5 View

How vaccines of covid 19 work?

Millions ask how vaccines of covid 19 be successful and safe, its here to explain generally how vaccine of pfizer work ,mRNA vaccines teach our cells how to make a protein that will trigger an...

28 February 2021 2,723 4 View

Which group formation theory do you recommend for projects that aim to bring together entrepreneurs for training for regional development?

I would like to have ideas about which theories of group formation are suitable for entrepreneurial training projects, with the aim of creating bonds, building trust, and collaboration for...

28 February 2021 4,223 2 View

Problem with shRNA transfection. Why are only two plates getting contaminated instead of all?

I transfected my LNCaP-WT cells with 3 shRNA plus their NTC two weeks ago and split two puromycin selected cell plates on Friday last week(Feb 26). I checked for GFP in the cells, and they all...

28 February 2021 4,949 3 View

What is the most common number of epitopes in an multi-epitope Vaccine?

hi everyone, I'm interested in the field of vaccine design specifically multi-epitope cancer vaccines , I want to know if there is a minimum and maximum number of epitopes we could use in a...

27 February 2021 3,882 3 View